Interaction between thermal magnons and phonons in CoFeB/Au multilayer

Nandan P. Babu,Aleksandra Trzaskowska,Slawomir Mielcarek,Hubert Glowinski,Oleksandr M. Chumak,Milosz Zdunek,Jaroslaw W. Klos,Maciej Krawczyk

IEEE Magnetics Letters（2019）

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摘要

The dispersion relations of thermal magnons and phonons, which exist in a multilayered CoFeB/Au sample deposited on a silicon substrate, were determined by using Brillouin light scattering spectrometry in the oblique geometry, for the 45° angle between the in-plane-oriented static magnetization and the wave vector. Due to the low effective saturation magnetization of the multilayer, we were able t...

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关键词

Magnetic multilayers,Nonhomogeneous media,Surface acoustic waves,Saturation magnetization,Dispersion,Geometry,Magnetosphere

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